The leading 18 players of different nationalities in the world rankings are eligible and they select a team-mate.

The decisions not to play by Singh, US Open champion Michael Campbell, Mike Weir, Stephen Ames, Nick Price and Thongchai Jaidee mean Fiji, New Zealand, Canada, Zimbabwe and Thailand are not even in the field.

Since the event came under the umbrella of the World Golf Championships in 2000, it has switched to two rounds of foursomes and two of fourballs.